Bubble pushing

Bubble pushing

Bubble pushing is a technique used to transform certain gates into others - usually NANDs to ORs and NORs to ANDs. The technique can also be used to simplify the logic of a combinational circuit. The rule is that pushing one "bubble" (circle representing NOT) from each input changes the gate (AND to OR or OR to AND) and yields one bubble on the output. One can also do the reverse.

For XOR to XNOR, pushing one bubble from one of the inputs yields one bubble on the output. The reverse holds as well.

External links

* [http://users.ece.utexas.edu/~adnan/vlsi-05/lec8CombCcts.ppt Presentation on bubble pushing from University of Texas]


Wikimedia Foundation. 2010.

Игры ⚽ Поможем решить контрольную работу

Look at other dictionaries:

  • Bubble Bobble — Infobox VG title = Bubble Bobble caption = Promotional USA flyer for the original arcade iteration of Bubble Bobble developer = Taito publisher = Taito and Romstar designer = Fukio Mitsuji release = 1986 genre = Platform game modes = Up to 2… …   Wikipedia

  • Bubble Trouble — Infobox VG title = Bubble Trouble caption = Bubble Trouble X icon developer = Ambrosia Software publisher = Ambrosia Software engine = released = November 23, 1996 genre = Action modes = Single player ratings = platforms = Mac OS 8.6, Mac OS X… …   Wikipedia

  • United States housing bubble — The United States housing bubble is an economic bubble in many parts of the United States housing market including areas of California, Florida, New York, Michigan, the Northeast Corridor, and the Southwest markets. On a national level, housing… …   Wikipedia

  • Speculative Bubble — A spike in asset values within a particular industry, commodity, or asset class. A speculative bubble is usually caused by exaggerated expectations of future growth, price appreciation, or other events that could cause an increase in asset values …   Investment dictionary

  • Retiming — is the technique of moving the structural location of latches or registers in a digital circuit to improve its performance, area, and/or power characteristics in such a way that preserves its functional behavior at its outputs. Retiming was first …   Wikipedia

  • Economic Affairs — ▪ 2006 Introduction In 2005 rising U.S. deficits, tight monetary policies, and higher oil prices triggered by hurricane damage in the Gulf of Mexico were moderating influences on the world economy and on U.S. stock markets, but some other… …   Universalium

  • ECONOMIC AFFAIRS — THE PRE MANDATE (LATE OTTOMAN) PERIOD Geography and Borders In September 1923 a new political entity was formally recognized by the international community. Palestine, or Ereẓ Israel as Jews have continued to refer to it for 2,000 years,… …   Encyclopedia of Judaism

  • United States — a republic in the N Western Hemisphere comprising 48 conterminous states, the District of Columbia, and Alaska in North America, and Hawaii in the N Pacific. 267,954,767; conterminous United States, 3,022,387 sq. mi. (7,827,982 sq. km); with… …   Universalium

  • Subprime mortgage crisis — Part of a series on: Late 2000s financial crisis Major dimensions …   Wikipedia

  • Messerschmitt KR200 — Manufacturer Regensburger Stahl u. Maschinenbau, Regensburg, Germany Also called Kabinenroller, Karo Production 1956 1964 …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”